Stéphane Horel (France) is an investigative journalist at Le Monde

Author of several films and books, she specialises in corporate harm, toxic industries, conflict of interest and scientific disinformation. In early 2023, she supervised the European map of PFAS contamination of the "Forever Pollution Project".

Her long-term investigation on the European regulation of endocrine disruptors was shortlisted for the Albert Londres Prize (2016) and received the Louise Weiss Prize for European Journalism (2017). Her series of articles on the "Monsanto papers", co-authored with Stéphane Foucart, was awarded the 2018 European Press Prize for Investigation. In the past years, she has worked on environmental pollution, pesticides, Big Tobacco and Big Alcohol, and is trying to improve the world at the margin with cross-border investigation.

Stéphane Horel

Basic information

Stéphane Horel
Corporate harm from toxic industries

Supported projects

The Forever Pollution Project

  • Environment

EUROPE - Nearly 23,000 sites all over Europe are contaminated by the “forever chemical” PFAS, an exclusive, months-long investigation from 18 European newsrooms shows. The investigation “The Forever Pollution Project” revealed an additional 21,500 presumptive contamination sites due to current or past industrial activity. This contamination spreads all over Europe.

Big Tobacco's proxy-lobby in the 21st century

  • Industry

Le Monde and The Investigative Desk delved into the multi-layered world of Big Tobacco’s 21st century astroturfing. They discovered that under the guise of defending individual freedom, fake consumer organisations are promoting e-cigarettes. 

The Chlorpyrifos Case

  • Environment
  • Healthcare

BRUSSELS - Residues of Chlorpyrifos, a dangerous insecticide, have been found in fruit baskets and samples of human urine across Europe. This large, cross-border investigation unveils its risks for the public. 

Mentor for

Why Banned Toxic Pesticides from EU markets are a Concern for Cameroon and Kenya

  • Agriculture
  • Environment

KENYA/CAMEROON - A cross-border investigation has established that pesticides that are already banned within European Union markets are still used in Kenya and Cameroon. These chemicals of concern are readily available to small and large-scale farmers who are ignorant of their effects.